Pennsylvania State Route 304 is an east-west highway in Southern Union County. It runs from U.S. Rt. 15, at Winfield, to Pennsylvania State Route 45, at Mifflinburg. PA St Rt 304 passes through the following towns in Union County. Winfield New Berlin Dice Mifflinburg PA St Rt 304 is not multi-plexed in Union County. PA St Rt 304 intersects the following highways in Union County. U.S. Rt. 15, at Winfield. Pennsylvania State Route 204, at New Berlin. TRUCK Pennsylvania State Route 304, near Mifflinburg. Pennsylvania State Route 45, at Mifflinburg.
Branches of PA St Rt 304 in Union County. A junction marker on NB U.S. Rt. 15. A guide marker on NB U.S. Rt. 15. A guide marker in Winfield.
